In "The Serpent's Shadow" by Rick Riordan, Anubis appears as he typically does, characterized by his dark hair and striking brown eyes. However, this time he is overwhelmed by intense anger, showcasing a different, more protective side of his personality. His demeanor indicates that he is prepared to defend his loved ones at all costs.

The protagonist recognizes that Anubis's fury is directed toward those who threaten her, revealing a sense of security in his presence. Moreover, it becomes clear that Walt, another key character, will not restrain the power of Anubis's wrath. This moment highlights the depth of their relationships and the lengths they are willing to go to defend one another.